The Nation's Schools, Količina 43Michael Vincent O'Shea McGraw Hill, 1949 |
Iz vsebine knjige
Zadetki 1–3 od 82
Stran 99
... sound reproduc- tion - in ample volume . It provides efficient illumination , brilliantly clear . It is dependable , easy to thread , simple to operate . It is gentle to precious film , easy to service . The many special features that ...
... sound reproduc- tion - in ample volume . It provides efficient illumination , brilliantly clear . It is dependable , easy to thread , simple to operate . It is gentle to precious film , easy to service . The many special features that ...
Stran 111
... sound con- ditioning can control unwanted noise before it even starts ! The very urge to make noise can be discouraged by simply eliminating the effect children desire . By taking the " fun " out of noise , sound conditioning serves as ...
... sound con- ditioning can control unwanted noise before it even starts ! The very urge to make noise can be discouraged by simply eliminating the effect children desire . By taking the " fun " out of noise , sound conditioning serves as ...
Stran 93
... sound reproduc- tion in ample volume . It provides efficient illumination , brilliantly clear . It is dependable , easy to thread , simple to operate . It is gentle to precious film , easy to service . The many special features that ...
... sound reproduc- tion in ample volume . It provides efficient illumination , brilliantly clear . It is dependable , easy to thread , simple to operate . It is gentle to precious film , easy to service . The many special features that ...
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